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Positive Displacement Pumps

These pumps are often thought of as high-pressure pumps. Their positive displacement of fluid and fixed volume are the result of the fluid being mechanically moved through their pump passage on a regular cycle. This means that regardless of the system they discharge into, the pressure and volume will remain constant. The power of the driving device and its speed, limit the volume and pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to 100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed and fixed volume per cycle, they handle very viscid fluids well.Smaller than centrifugal pumps.Quiet, do not ad much heat to the fluid, suitable for shear sensitive fluids.Diaphragm pumps can easily pass solids, stringy and fibrous foreign matter. Are made in materials from CI to Titanium and PP, PVDF and PPS engineering resins.
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  1. H Series Sanitary & Hygienic

    All-Flo Pumps

    H Series Sanitary & Hygienic

    H050-THL-PTTT-G70
    $3,498.00
    1/2” (13mm) HDPE/ Polished 316L Stainless Steel. Suction lift capability may vary depending on the construction materials and application parameters. The range is from 16.4 feet dry to 30 feet in a primed condition. Tri Clamp Click here to ...
    Sanitary Learn More
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  2. allflo_c150-fpp-sspe-b70-2.jpg

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    C150-FPP-SSPE-B70
    $2,653.46
    PolyPro Air AODD Pump 1.5". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical, pneumatic pump for chemicals. Click here to Learn How to Size your D...
    PE-15 1-1/2" Learn More
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  3. All-Flo A100-NA3-SS3E-000 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    A100-NA3-SS3E-B70
    $2,137.15

    Stainless Steel AODD Pump 1". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS fro...

    1" 316SS Learn More
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  4. All-Flo PB-15 PP Air Operated Double Diaphragm Pump

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump

    C150-FPP-GGPN-B70
    $2,593.98
    PolyPro AODD Pump 1 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from...
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  5. All-Flo - A150-NAA-TTYT-B30: Aluminum Air Operated Diaphragm Pump

    All-Flo Pumps

    Aluminum Air Operated Diaphragm Pump

    A150-NAA-TTYT-B30
    $2,079.90
    Aluminum AODD Pump 1 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. 3/4" npt air supply. Models available in PP, PVDF, Nylon, Conductive Ny...
    Teflon Diaphragm Learn More
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  6. All-Flo - A100-FPK-TTKT-S70: pvdf Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Kynar Air Operated Double Diaphragm Pump

    A100-FPK-TTKT-S70
    $2,440.21

    Kynar PVDF Air AODD Pump 1/4". Air operated Diaphragm pump. Suitable for strong acids and bases. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Repl...

    1" KT-10 Kynar Teflon Learn More
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  7. Standard SPFP05PPT Stainless Steel Diaphragm pump

    Standard

    Stainless Steel Diaphragm pump FDA

    SPFG05PPP
    $2,593.00

    Stainless Steel Diaphragm pump, air / pneumatic, double

    FDA Compliant double diaphragm Pumps are specifically engineered for food and cosmetic applications and are constructed with the FDA CFR Title 21 approved materials for food contact. Each ai...

    1/2" 316SS Learn More
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  8. All-Flo SP-10 Stainless Steel Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Stainless Steel Air Operated Double Diaphragm Pump

    SP-10
    $2,575.10

    Stainless Steel AODD Pump 1".

    New PN A100-NA3-TT3T-B70   Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Inlet and outlet manifolds can be rotated s...

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  9. All-Flo - A100-FPK-SSKE-S70: PVDF Air Operated Double Diaphragm

    All-Flo Pumps

    PVDF Air Operated Double Diaphragm Pump

    A100-FPK-SSKE-S70
    $2,168.57

    Kynar PVDF Air AODD Pump 1". Chemical double diaphragm pump made in USA. Featuring All-Flo's Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces...

    1" KE-10 kynar Santo Learn More
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  10. All-Flo C100-NPK-TTKT-G70 Diaphragm Pump Kynar

    All-Flo Pumps

    Diaphragm Pump Kynar

    C100-NPK-TTKT-G70
    $2,415.51
    Diaphragm Pump Kynar 1". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces KN-10 All pumps carry a full 5 year manufacturers warranty. ...
    1" Kynar KN-10 Learn More
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